B.2. 20-446 Adopt a resolution determining Knife River to be the lowest responsive and responsible bidder for the Springtime Estates Improvement Project; award contract to same for an amount not to exceed $2,097,580; authorize the City Manager or designee to sign the construction agreement; and authorize the City Manager or designee to approve project contingency not to exceed 10%, extend the construction contract, and issue change orders not to exceed 10.5%, and appropriate funds not to exceed $867,830.